[protector] Support for collapsing multiple changes into a single one.

chrome/browser/protector/settings_change_global_error.cc

Index: chrome/browser/protector/settings_change_global_error.cc
diff --git a/chrome/browser/protector/settings_change_global_error.cc b/chrome/browser/protector/settings_change_global_error.cc
index a51103b9102069c8d894fec1106dd256af96f642..d2217bec53d83606a2d29b15ca51d51d056b99f2 100644
--- a/chrome/browser/protector/settings_change_global_error.cc
+++ b/chrome/browser/protector/settings_change_global_error.cc
@@ -165,6 +165,9 @@ string16 SettingsChangeGlobalError::GetBubbleViewCancelButtonLabel() {
 }
 
 void SettingsChangeGlobalError::OnBubbleViewDidClose(Browser* browser) {
+  // The bubble may be closed as the result of RemoveFromProfile call.

[whywhat, 2012/04/06 16:28:32]

Could you add more details on when RemoveFromProfile is called so that this
situation occurs?

[Ivan Korotkov, 2012/04/09 14:46:47]

Done.

+  if (!profile_)
+    return;
   if (!closed_by_button_) {
     BrowserThread::PostDelayedTask(
         BrowserThread::UI, FROM_HERE,